regression was run to determine if there is a relationship between hours of TV watched per day,x

x

, and number of sit-ups,y

y

, a person can do in a minute.

The results of the regression were: y=ax+b a=-1.344 b=24.807 

Use this to predict the number of sit-ups a person who watches9

9

hours of TV can do in a minute. Round to the nearest whole number.